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eCryptfs: Unlock page in write_begin error path

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Unlock the page in error path of ecryptfs_write_begin(). This may
happen, for example, if decryption fails while bring the page
up-to-date.

Cc: <stable@kernel.org>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
This commit is contained in:
Tyler Hicks
2011-03-09 11:49:13 -06:00
parent 57db4e8d73
commit 50f198ae16
1 changed files with 5 additions and 0 deletions
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5
fs/ecryptfs/mmap.c
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@@ -381,6 +381,11 @@ static int ecryptfs_write_begin(struct file *file,
&& (pos != 0)) && (pos != 0))
zero_user(page, 0, PAGE_CACHE_SIZE); zero_user(page, 0, PAGE_CACHE_SIZE);
out: out:
if (unlikely(rc)) {
unlock_page(page);
page_cache_release(page);
*pagep = NULL;
}
return rc; return rc;
} }